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unixconf.h
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C/C++ Source or Header
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1991-04-30
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4KB
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105 lines
/*****************************************************************************
*
* unixconf.h
*
* from DKBTrace (c) 1990 David Buck
*
* This header file contains all constants and types required to run on a
* UNIX system.
*
* This software is freely distributable. The source and/or object code may be
* copied or uploaded to communications services so long as this notice remains
* at the top of each file. If any changes are made to the program, you must
* clearly indicate in the documentation and in the programs startup message
* who it was who made the changes. The documentation should also describe what
* those changes were. This software may not be included in whole or in
* part into any commercial package without the express written consent of the
* author. It may, however, be included in other public domain or freely
* distributed software so long as the proper credit for the software is given.
*
* This software is provided as is without any guarantees or warranty. Although
* the author has attempted to find and correct any bugs in the software, he
* is not responsible for any damage caused by the use of the software. The
* author is under no obligation to provide service, corrections, or upgrades
* to this package.
*
* Despite all the legal stuff above, if you do find bugs, I would like to hear
* about them. Also, if you have any comments or questions, you may contact me
* at the following address:
*
* David Buck
* 22C Sonnet Cres.
* Nepean Ontario
* Canada, K2H 8W7
*
* I can also be reached on the following bulleton boards:
*
* OMX (613) 731-3419
* Mystic (613) 596-4249 or (613) 596-4772
*
* Fidonet: 1:163/109.9
* Internet: dbuck@ccs.carleton.ca
* The "You Can Call Me RAY" BBS (708) 358-5611
*
* IBM Port by Aaron A. Collins. Aaron may be reached on the following BBS'es:
*
* The "You Can Call Me RAY" BBS (708) 358-5611
* The Information Exchange BBS (708) 945-5575
*
*****************************************************************************/
/* The following defines may be added when porting to other systems or
other compilers. The defaults are shown here:
#define PARAMS(x) x - use 'x' for ANSI, '()' for non ANSI
#define EPSILON 1.0e-5 - a small value used for quartics
#define FILE_NAME_LENGTH 150 - default file name length
#define DBL double - floating point precision
#define HUGE_VAL 1.0e+17 - a really big number
#define DBL_FORMAT_STRING "%lf" - the string to use for scanfs of doubles
#define DEFAULT_OUTPUT_FORMAT 'd' - the default +f format
#define TEST_ABORT - code to test for ^C or abort
(called on each pixel)
#define RED_RAW_FILE_EXTENSION ".red" - for +fr, this is the extension for the
red file
#define GREEN_RAW_FILE_EXTENSION ".grn" - ditto for the green file
#define BLUE_RAW_FILE_EXTENSION ".blu" - ditto again for the blue file
#define STARTUP_DKB_TRACE - first executable statement of main
(useful for initialization)
#define PRINT_OTHER_CREDITS - used for people who extend dkbtrace.
(put your own printf's here)
#define FINISH_DKB_TRACE - last statement before exiting normally
#define FILENAME_SEPARATOR "/" - the character that separates names
in a path.
#define setvbuf(w,x,y,z) - some systems don't understand setvbuf.
If not, just define it away - it's
not critical to the raytracer. It
just buffers disk accesses.
*/
/* By default, UNIX doesn't use ANSI prototyping */
#ifdef _STDC_
#define PARAMS(x) x
#else
#define PARAMS(x) ()
#define volatile
#endif
#define ACOS acos
#define SQRT sqrt
#define POW pow
#define COS cos
#define SIN sin
#define EPSILON 1.0e-5
char *getenv PARAMS((char *name));
char *malloc PARAMS((int size));
void free PARAMS((void *));
#define STARTUP_DKB_TRACE unix_init_dkb_trace();
#ifndef max
#define max(x,y) ((x<y)?y:x)
#endif